Connect with us

Triac Ramp Up & Down Circuit

Discussion in 'Power Electronics' started by Sparky1221, Oct 3, 2018.

Scroll to continue with content
  1. Sparky1221


    Oct 3, 2018
    Need help designing a circuit that will automatically ramp up/down a triac based on input voltage change to a triac trigger pin. See input voltage and output voltage plots.

    This will be used to control a triac for a motor. Would like to have a soft start (ramp up) on initial startup and the ability to ramp it down to say half speed by changing the triac's trigger voltage.

    Any ideas?

    Attached Files:

  2. kellys_eye


    Jun 25, 2010
    This is usually achieved by pulse modulation of the gate. Google ''slow start" circuits.
  3. Bluejets


    Oct 5, 2014
    If on AC then a diac.
    kellys_eye likes this.
Ask a Question
Want to reply to this thread or ask your own question?
You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.
Electronics Point Logo
Continue to site
Quote of the day